PERFORMANCE AND EMISSION ANALYSIS OF VCR SINGLE CYLINDER FOUR STROKE DI DIESEL ENGINE USING PUNNAGAM OILK. Murugan, R. Thirumalai and K. RajkumarAbstract Biodiesel can be produced from vegetable seed non edible oils and also from waste animal fat. The Punnagam oil (Calophyllum innophyllum seed oil) has a new possible source of non edible oil use of alternative fuel. They can successfully change in alternate diesel fuel and help in decreasing the import of the crude oil used in diesel engine. The discarded seed of Punnagam seed which are planted in India mainly available in Ramanathapuram district yield period is twice a year to prevent soil erosion is considered as the possible source for extracting biodiesel, Which makes it conceivable to use this alternate fuel for Calophyllum innophyllum seed oil with esterified in Calophyllum innophyllum oil methyl ester (CIOME) in the obtainable variable compression ratio engine with change of different compression ratios like 16:1, 17:1, and 18:1. The Experiment has been conducted at 0 - 15kg load with engine speed of 1500rp mandate compression ratio varies from 16:1 to 18:1. The performance and emission results of the diesel engine revealed that biodiesel can be blended CIOME with diesel up to 60% at an optimum compression ratio of 18, in order to get improved performance on brake power, brake thermal efficiency, specific fuel consumption and reduced engine emission.
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